I have been tracking this potential variation for a few years and have collected enough data to say that I have confirmed it with certainty. The Tom Clarke card exists with the "C" sleeve emblem and without. This is not just a missing or light color pass as you can clearly see strong red ink sections on the cap, collar and belt of the "no emblem" variation. This variation fits in with other known and accepted variations from the set (Austin, Lewis, Mullin) that are found with and without uniform emblems. Both Clarke variations appear with Recruit Factory 240 and Recruit Factory 606 backs and neither is scarce, though I have tracked the "without emblem" variation to be slightly less common. So...one more for the checklist, all you T207 lovers out there